Physical realism is the view that the physical world we see is real and
exists by itself, alone. Most people think this is self-evident, but
physical realism has been struggling with the facts of physics for some
time now. The paradoxes that baffled physics last century still baffle
it today, and its great hopes of string theory and supersymmetry aren't
leading anywhere.
In contrast, quantum theory works, but quantum waves that entangle,
superpose, then collapse to a point are physically impossible - they
must be 'imaginary.' So for the first time in history, a
theory of what doesn't exist is successfully predicting what does - but how can the unreal predict the real?
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